Enable enable_shared_storage_snapshot_in_query by default

Why it matters

This feature addresses consistency issues by enabling shared storage snapshots during query execution, providing users with more reliable and consistent query results with no expected downsides.

How to use it

The setting enable_shared_storage_snapshot_in_query is now enabled by default, so no additional configuration is required to benefit from improved consistency guarantees. Users can verify or override this setting in the server configuration if needed.